/Engine/Source/Runtime/Slate/Public/Framework/Docking/LayoutService.h
Given a named DefaultLayout, return any saved version of it from the given ini file, otherwise return the default, also default to open tabs based on bool.
Loaded layout or the default.
static [TSharedRef](API\Runtime\Core\Templates\TSharedRef)< [FTabManager::FLayout](API\Runtime\Slate\Framework\Docking\FTabManager\FLayout) > LoadFromConfig ( const [FString](API\Runtime\Core\Containers\FString) & InConfigFileName, const [TSharedRef](API\Runtime\Core\Templates\TSharedRef)< [FTabManager::FLayout](API\Runtime\Slate\Framework\Docking\FTabManager\FLayout) > & InDefaultLayout, const EOutputCanBeNullptr InPrimaryAreaOutputCanBeNullptr )